To suppress drop impact of granular materials, e.g. coke, carried by a belt conveyer.

A chute device 100 for transit parts of a belt conveyor is arranged between an upper belt conveyor 1 and a lower belt conveyor 2 and guides and transfers coke 5 discharged from the upper belt conveyor 1 to the lower belt conveyor 2. A protrusion part 11 having a plate-like rubber elastic body 20 laid on its upper surface and extending nearly horizontally is arranged at a drop position P of the coke 5 so as to alleviate drop impact.